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Hydraulic system - Y model
FAULT
Boom slow/eradic.
Ram not functioning.
PROBABLE CAUSE
Air in system.
Regulation valve incorrectly set.
Insufficient hydraulic pressure.
Insufficient amount of oil in tractor reser-
voir.
Restrictor or regulation valve blocked.
7 - Fault finding
CONTROL/REMEDY
Loosen ram connection and activate hydraulics until oil flow
has no air in it (not whitish).
Open or close until desired speed is achieved (clockwise =
less speed).
Remember oil must be at operating temperature.
Check output pressure of tractor hydraulics. Minimum for
sprayer is 130 bar.
Check and top if needed.
Secure boom. Dismantle and clean.
7.3
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